Patient characteristics and haemodynamic data measured during MRI
| Control group | Primary PHT | Secondary PHT | |
|---|---|---|---|
| *p<0.01, control versus pulmonary hypertension (PHT) group; †p<0.01 secondary versus primary PHT. | |||
| PVR, pulmonary vascular resistance. | |||
| Patient characteristics | |||
| Heart rate (beats/min) | |||
| MRI laboratory | 65 (11) | 73 (9) | 82 (8) |
| Catheterisation laboratory | 63 (9) | 72 (10) | 82 (9) |
| Mean systemic arterial pressure (mm Hg) | |||
| MRI laboratory | 73 (8) | 71 (7) | 68 (9) |
| Catheterisation laboratory | 74 (9) | 71 (12) | 69 (8) |
| Haemodynamic data | |||
| Mean PA pressure (mm Hg) | |||
| MRI laboratory | 12.3 (3.1) | 57.4 (21.4)* | 43.5 (16.3)* |
| Catheterisation laboratory | 12.6 (3.2) | 57.1 (10.2)* | 43.7 (17.8)* |
| Measures during MRI | |||
| PA flow volume (l/min/m2) | 3.1 (0.3) | 2.2 (0.6)* | 3.7 (0.9)* † |
| Baseline PVR (Wood units·m2) | 1.2 (0.8) | 17.2 (4.5)* | 8.9 (3.9)* † |